Solid Roll Product Formed From Surface Rewinder With Belt And Winding Drum Forming a Winding Nest
US 11,383,946 Lapsed on the fee recordLapsed Jul 12, 2026 on the fee record · Medium confidence
20-year base term ends Apr 17, 2040
Why Medium: The fee record shows no payment for this window, and USPTO's status still reads "Patented Case".
First maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Apr 17, 2020
Jul 12, 2026
Jul 12, 2022
May 17, 2039
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Apr 17, 2020, when this application, 16/851,661, was filed | Apr 17, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +257 days, USPTO patent term adjustment record | Dec 30, 2040 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,046,540) | capped to May 17, 2039 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | The fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Jul 12, 2026 | Medium confidence |
| Computed term end | The steps above, in order | Jul 12, 2026 | Medium confidence |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.